Communication apparatus, communication method, and computer readable recording medium

ABSTRACT

A communication apparatus includes a transceiving unit that transmits content data to a portable apparatus and receives temporal change information of a touch position from the portable apparatus, and a transmission control unit that establishes wireless communication between the portable apparatus and the communication apparatus and causes the transceiving unit to transmit the content data to the portable apparatus when the temporal change information of the touch position received by the transceiving unit is substantially identical with preset setting information.

CROSS REFERENCES TO RELATED APPLICATIONS

This application is based upon and claims the benefit of priority fromJapanese Patent Application No. 2012-052151, filed on Mar. 8, 2012, theentire contents of which are incorporated herein by reference.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to a communication apparatus thattransmits content data including image data to another electronicapparatus according to a specified wireless communication standard, acommunication method by the communication apparatus, and a computerreadable recording medium.

2. Description of the Related Art

It is known that content data including image data captured by a mobilephone with a camera or the like is transmitted to an external apparatussuch as a personal computer according to a specified wirelesscommunication standard (for example, see Japanese Patent No. 4174208).According to this technique, a bar code is displayed on a display of anapparatus of a transmission target as device address informationnecessary for wireless communication, and an image of the bar code iscaptured by a camera of a transmission side mobile phone to acquire thedevice address information from the bar code, so that setting forwireless communication can be automatically performed.

SUMMARY OF THE INVENTION

In accordance with some embodiments, a communication apparatus, acommunication method by the communication apparatus, and a computerreadable recording medium are presented.

In some embodiments, a communication apparatus performs bidirectionalwireless communication with a portable apparatus having a touch panelconfigured to detect a touch of an object from outside and to receive aninput of a position signal according to a detected position, andtransmits content data including image data. The communication apparatusincludes: a transceiving unit that transmits the content data to theportable apparatus and receives temporal change information of aposition of the touch from the portable apparatus; and a transmissioncontrol unit that establishes the wireless communication between theportable apparatus and the communication apparatus and causes thetransceiving unit to transmit the content data to the portable apparatuswhen the temporal change information of the position of the touchreceived by the transceiving unit is substantially identical with presetsetting information.

In some embodiments, a communication apparatus includes: a transceivingunit that performs transmission and reception with an externalapparatus; a setting unit; and a determining unit that determineswhether a character set by the setting unit is identical with temporalchange information of a touch on a touch panel received by thetransceiving unit. The transceiving unit transmits content data to theexternal apparatus according to a determination result by thedetermining unit.

In some embodiments, a communication apparatus performs bidirectionalwireless communication with a portable apparatus having a touch panelconfigured to detect a touch of an object from outside and to receive aninput of a position signal according to a detected position, andtransmits content data including image data. The communication apparatusincludes: a transceiving unit that transmits the content data to theportable apparatus and receives trajectory information of the touch fromthe portable apparatus; and a transmission control unit that performsthe wireless communication between the portable apparatus and thecommunication apparatus when the trajectory information of the touchreceived by the transceiving unit is substantially identical with apreset trajectory of the touch.

In some embodiments, a communication apparatus performs bidirectionalwireless communication with a portable apparatus having a touch panelconfigured to detect a touch of an object from outside and to receive aninput of a position signal according to a detected position, andtransmits content data including image data. The communication apparatusincludes: a transceiving unit that transmits the content data to theportable apparatus and receives character information drawn by the touchfrom the portable apparatus; and a transmission control unit thatperforms the wireless communication between the portable apparatus andthe communication apparatus when drawing information of the touchreceived by the transceiving unit is substantially identical with presetcharacter information.

In some embodiments, a communication apparatus performs bidirectionalwireless communication with a portable apparatus having a touch panelconfigured to detect a touch of an object from outside and to receive aninput of a position signal according to a detected position, andtransmits content data including image data. The communication apparatusincludes: a display unit that displays an image corresponding to theimage data; a second touch panel that is superimposed on the displayunit, detects a touch of an object from outside, and receives an inputof a position signal according to a detected position; and a displaycontrol unit that causes the display unit to display a trajectory of atouch operation performed on the second touch panel based on theposition signal input from the second touch panel.

In some embodiments, a communication method is performed by acommunication apparatus that performs bidirectional wirelesscommunication with a portable apparatus having a touch panel configuredto detect a touch of an object from outside and to receive an input of aposition signal according to a detected position, and transmits contentdata including image data. The method includes: receiving identificationinformation of the portable apparatus, a password corresponding to theidentification information, and temporal change information of aposition of the touch regarding a touch pattern to be drawn on the touchpanel of the portable apparatus to establish the wireless communicationwith the portable apparatus; and establishing the wireless communicationbetween the portable apparatus and the communication apparatus andtransmitting the content data to the potable apparatus when the temporalchange information of the position of the touch is substantiallyidentical with preset setting information.

In some embodiments, a non-transitory computer readable recording mediumwith an executable program stored thereon is presented. The programinstructs a processor, which is disposed in a communication apparatusthat performs wireless communication with another portable apparatus andtransmits content data including image data, to execute: receivingidentification information of the portable apparatus, a passwordcorresponding to the identification information, and temporal changeinformation of a touch position regarding a touch pattern to be drawn ona touch panel of the portable apparatus to establish the wirelesscommunication with the portable apparatus; and establishing the wirelesscommunication between the portable apparatus and the communicationapparatus and transmitting the content data to the portable apparatuswhen the temporal change information of the touch position issubstantially identical with preset setting information.

The above and other features, advantages and technical and industrialsignificance of this invention will be better understood by reading thefollowing detailed description of presently preferred embodiments of theinvention, when considered in connection with the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a block diagram illustrating configurations of a communicationapparatus and a portable apparatus according to a first embodiment ofthe present invention;

FIG. 2 is a diagram for describing an outline of a communication processexecuted by the communication apparatus and the portable apparatusaccording to the first embodiment of the present invention;

FIG. 3 is a diagram for schematically describing a state of FIG. 2;

FIGS. 4A to 4C are diagrams illustrating statuses when the communicationapparatus and the portable apparatus according to the first embodimentof the invention establish wireless communication;

FIG. 5 is a diagram illustrating the overview of a method by which asignalizing unit of the communication apparatus according to the firstembodiment of the invention converts a trajectory of a touch panel by auser into numerical values;

FIG. 6 is a flowchart illustrating an outline of a process executed bythe communication apparatus according to the first embodiment of thepresent invention;

FIG. 7 is a diagram for describing an outline of a communication processexecuted by a communication apparatus and a portable apparatus accordingto a second embodiment of the present invention;

FIG. 8 is a diagram for schematically describing a state of FIG. 7;

FIG. 9 is a flowchart illustrating the overview of a process performedby the communication apparatus according to the second embodiment of thepresent invention;

FIG. 10 is a block diagram illustrating configurations of acommunication apparatus and a portable apparatus according to a thirdembodiment of the present invention;

FIG. 11 is a flowchart illustrating an outline of a process executed bythe communication apparatus according to the third embodiment of thepresent invention;

FIG. 12 is a block diagram illustrating configurations of acommunication apparatus and a portable apparatus according to a fourthembodiment of the present invention;

FIG. 13 is a diagram for describing an outline of a communicationprocess executed by the communication apparatus and the portableapparatus according to the fourth embodiment of the present invention;

FIG. 14 is a diagram for schematically describing a state of FIG. 13;

FIG. 15 is a flowchart illustrating an outline of a process executed bythe communication apparatus according to the fourth embodiment of thepresent invention;

FIG. 16 is a diagram schematically illustrating a status of thecommunication apparatus when a touch position determining unit of thecommunication apparatus according to the fourth embodiment of thepresent invention determines a touch position; and

FIG. 17 is a graph of a relation between time and data of the touchposition determined by the touch position determining unit of thecommunication apparatus according to the fourth embodiment of thepresent invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

Exemplary embodiments of the present invention will be described withreference to the accompanying drawings. The present invention is notlimited to the following embodiments. In the drawings, the samereference numerals are used to indicate the same or similar parts.

First Embodiment

FIG. 1 is a block diagram illustrating a configuration of acommunication apparatus and a portable apparatus according to a firstembodiment of the present invention. A communication apparatus 1 and aportable apparatus 2 illustrated in FIG. 1 are capable of performingtwo-way communication of content data including image data and audiodata according to a specified wireless communication standard. Here, theexample of the specified wireless communication standard includeIEEE802.11b, IEEE802.11n, Bluetooth (a registered trademark), andinfrared communication standard. In the first embodiment, any of thewireless communication standards can be applied.

First, the communication apparatus 1 will be described. Thecommunication apparatus 1 includes an imaging apparatus such as adigital camera that images a specified field of view region andgenerates image data. The communication apparatus 1 includes an imagingunit 11, an input unit 12, a display unit 13, a touch panel 14, arecording unit 15, a transceiving unit 16, an audio input/output (I/O)unit 17, and a communication apparatus control unit 18.

The imaging unit 11 includes an optical system that is configured withone or more lenses and collects light from a specified field of viewregion, a diaphragm that adjust the incident amount of light collectedby the optical system, a shutter that operates according to an input ofa release signal, an imaging element of a charge coupled device (CCD)type or a complementary metal oxide semiconductor (CMOS) that receiveslight having passed the diaphragm and the shutter and converts thereceived light into an electric signal, and a signal processing unitthat performs an analog process such as a noise reduction process and again-up process and A/D conversion on an analog signal output from theimaging element, and outputs the AD conversion result to thecommunication apparatus control unit 18.

The input unit 12 includes a power switch that receives an input aninstruction signal for instructing power-on or power off of thecommunication apparatus 1, a release switch that receives an input of arelease signal instructing the communication apparatus 1 to performshooting, a selector switch that receives an input of a switching signalinstructing switching of various modes of the communication apparatus,and an operating switch that receives an input of an operation signalfor changing setting of various kinds of parameters of the communicationapparatus 1.

The display unit 13 includes a display panel including a liquid crystaldisplay (LCD) or an organic electro luminescence (EL) element. Thedisplay unit 13 displays an image corresponding to image data recordedin the recording unit 15. Here, examples of the image display includes arec view display in which immediately captured image data is displayedduring only a given period of time (for example, 3 seconds), a playbackdisplay in which image data recorded in the recording unit 15 isdisplayed, and a live view image display in which a live view imagecorresponding to image data consecutively generated by the imaging unit11 is sequentially displayed in time series. Further, the display unit13 appropriately displays operation information of the communicationapparatus 1 and information related to shooting such as an exposurevalue and a diaphragm value.

The touch panel 14 is disposed on a display screen of the display unit13. The touch panel 14 detects a touch of an external object, andoutputs a positional signal corresponding to the detected touch positionto the communication apparatus control unit 18. Further, the touch panel14 may detect the position that the user touches based on informationdisplayed on the display unit 13 and receive an input of an instructionsignal instructing an operation to be performed by the communicationapparatus 1 according to the detected touch position. Generally, as thetouch panel 14, there are a resistive type touch panel, a capacitivetype touch panel, an optical sensing type touch panel, and the like. Inthe first embodiment, a touch panel of any of the types can be applied.

The recording unit 15 includes a semiconductor memory such as a flashmemory or a DRAM (Dynamic Random Access Memory). The recording unit 15records various programs configured to operate the communicationapparatus 1, various data or parameters used during execution of theprograms, and the like. The recording unit 15 includes a settinginformation recording unit 151 that records setting informationincluding identification information (an apparatus ID or a MAC address)of the communication apparatus 1 used to establish wirelesscommunication with the portable apparatus 2 in response to a touchoperation on the touch panel of the portable apparatus 2 and a passwordcorresponding to the identification information, a content informationrecording unit 152 that records content data including image data oraudio data generated by the imaging unit 11, and a signalizinginformation recording unit 153 that records signalizing information usedwhen a position signal input from the touch panel 14 is converted into aspecified numerical value. The recording unit 15 may have a function ofa recording medium interface that records information in a recordingmedium such as a memory card mounted from the outside of thecommunication apparatus 1 and reads information recorded by therecording medium.

The transceiving unit 16 performs the wireless communication with theportable apparatus 2 in conformity with a specified wirelesscommunication standard to transmit content data to the portableapparatus 2 and receives touch information on a touch pattern drawn onthe touch panel of the portable apparatus 2. The transceiving unit 16includes a communication device that performs the wireless communicationwith the portable apparatus 2 to perform bidirectional communication ofthe content data or various kinds of information. The communicationdevice includes an antenna that transmits/receives a radio signalto/from another apparatus, a transceiving circuit that performs ademodulation process on the signal received by the antenna and performsa modulation process on a signal to be transmitted, and the like. Thetransceiving unit 16 transmits a communication signal includingidentification information (apparatus ID) notifying the presence thereofat regular intervals when the communication apparatus 1 starts up,receives a communication signal transmitted from the portable apparatus2 or another apparatus, is recovered from a suspension state or astandby state, and establishes communication with the portable apparatus2 or another apparatus. Further, the transceiving unit 16 may beinstalled in a recording medium such as a memory card mounted from theoutside of the communication apparatus 1.

The audio I/O unit 17 includes a microphone, a speaker, and the like.The audio I/O unit 17 acquires audio data, and outputs the acquiredaudio data to the communication apparatus control unit 18. The audio I/Ounit 17 plays back and outputs audio data of content data recorded inthe recording unit 15.

The communication apparatus control unit 18 includes a centralprocessing unit (CPU) and the like. The communication apparatus controlunit 18 controls an operation of the communication apparatus 1 ingeneral by giving a corresponding instruction or transferring data tothe components configuring the communication apparatus 1 according to aninstruction signal, a switching signal, or the like from the input unit12 or the touch panel 14. The communication apparatus control unit 18sets setting information that includes identification information of theportable apparatus 2, a password corresponding to the identificationinformation, and touch information on a touch pattern to be drawn on thetouch panel of the portable apparatus 2 to establish the wirelesscommunication with the portable apparatus 2. When the touch informationis compared with the touch information received from the portableapparatus 2 and is identical with the touch information, thecommunication apparatus control unit 18 establishes the wirelesscommunication between the portable apparatus 2 and the communicationapparatus 1 and transmits content data to the portable apparatus 2.

The detailed configuration of the communication apparatus control unit18 will be described. The communication apparatus control unit 18includes an image processing unit 181, a signalizing unit 182, a settingunit 183, a pattern determining unit 184, a transmission control unit185, and a display control unit 186.

The image processing unit 181 includes an image engine (an imagecontroller), and executes various kinds of image processing on imagedata input from the imaging unit 11 and outputs the image processingresult to the recording unit 15 or the display unit 13. The imageprocessing unit 181 performs image processing including at least a gainprocess of adjusting brightness of an image, a gradation correctionprocess of correcting a gradation, an edge process, a white balanceprocess, a color correction process, and a γ correction process on imagedata. The image processing unit 181 may compress image data according tothe Joint Photographic Experts Group (JPEG) scheme and then causes thecompressed image data to be recorded in the recording unit 15.

The signalizing unit 182 converts a position signal continuously inputfrom the touch panel 14 into numerical values with reference to thesignalizing information recorded by the signalizing informationrecording unit 153. Specifically, the signalizing unit 182 converts atouch pattern or a trajectory of the touch panel 14 by the user intonumerical values (data).

The setting unit 183 sets setting information including touchinformation regarding a touch pattern to be drawn on the touch panel ofthe portable apparatus 2. Specifically, the setting unit 183 sets, asthe setting information, the touch information in which the numericalvalues into which the signalizing unit 182 converts the trajectory ofthe touch panel 14 by the user are the password of the communicationapparatus 1 to establish the wireless communication with the portableapparatus 2. The setting unit 183 records the touch information on thesetting information recording unit 151. Here, the touch pattern includesa touch pattern of a slide operation on the touch panel 14 by the user,a touch pattern of a pinch operation, and a touch pattern of a touchoperation.

The pattern determining unit 184 compares an operation pattern of thetouch information transmitted from the portable apparatus 2 via thetransceiving unit 16 to an operation pattern of the touch informationset by the setting unit 183 to determine whether these operationpatterns are identical with each other.

When the touch information received by the transceiving unit 16 isidentical with the touch information set by the setting unit 183, thetransmission control unit 185 establishes the wireless communicationbetween the portable apparatus 2 and the communication apparatus 1 andcauses the transceiving unit 16 to transmit the content data to theportable apparatus 2. Specifically, when the pattern determining unit184 determines that the touch information received by the transceivingunit 16 is identical with the touch information set by the setting unit183, the transmission control unit 185 transmits the content data to theportable apparatus 2.

The display control unit 186 causes the display unit 13 to display animage corresponding to the image data. The display control unit 186causes the display unit 13 to display a character or a trajectory drawnon the touch panel 14 by the user based on the position signal inputfrom the touch panel 14. For example, when the user draws “4” on thetouch panel 14, the display control unit 186 causes the display unit 13to display “4” corresponding to the trajectory of the user. Further, thedisplay control unit 186 may cause the display unit 13 to display thesetting information recorded by the setting information recording unit151.

The communication apparatus 1 having the above configuration may have acommunication function capable of performing two-way communication witha personal computer (not illustrated) via the Internet.

Next, the portable apparatus 2 will be described. The portable apparatus2 includes a multi-functional mobile phone that performs two-waywireless communication with a network or an external communicationstation. The portable apparatus 2 includes an imaging unit 21, atransceiving unit 22, an audio I/O unit 23, a geomagnetic detecting unit24, an input unit 25, a display unit 26, a touch panel 27, a recordingunit 28, a communication unit 29, and a portable control unit 30. Theimaging unit 21, the transceiving unit 22, the audio I/O unit 23, theinput unit 25, the display unit 26, and the touch panel 27 have the sameconfigurations as the imaging unit 11, the transceiving unit 16, theaudio I/O unit 17, the input unit 12, the display unit 13 and the touchpanel 14 of the communication apparatus 1, respectively, and thus adescription thereof will not be made.

The geomagnetic detecting unit 24 includes a magnetic director sensor,and detects a designated direction which is set to the portableapparatus 2 in advance. Specifically, the geomagnetic detecting unit 24detects a direction of the portable apparatus 2 when an upward directionfrom the center of a display screen of the display unit 26 is used as areference direction by detecting geomagnetic components in the verticaldirection and the horizontal direction when the display unit 26 is inthe horizontal state.

The recording unit 28 includes a semiconductor memory such as a flashmemory or a DRAM. The recording unit 28 records various kinds ofprograms of operating the communication apparatus 1 and various kinds ofdata and parameters used during execution of a program. The recordingunit 28 includes a setting information recording unit 281 that recordssetting information including identification information of thecommunication apparatus 1 necessary to perform the wirelesscommunication with the communication apparatus 1 and a passwordcorresponding to the identification information, a content informationrecording unit 282 that records the content data, and a signalizinginformation recording unit 283 that records the signalizing informationused when the position signal input from the touch panel 27 is convertedinto a specified numerical value.

The communication unit 29 is a communication interface for performingtwo-way communication with an external apparatus such as anotherportable apparatus or a personal computer via a network.

The portable control unit 30 includes a CPU or the like. The portablecontrol unit 30 controls an operation of the portable apparatus 2 ingeneral by giving a corresponding instruction or transferring data tothe components configuring the portable apparatus 2 according to aninstruction signal, a switching signal, or the like from the input unit25 or the touch panel 27.

The detailed configuration of the portable control unit 30 will bedescribed. The portable control unit 30 includes an image processingunit 301, a signalizing unit 302, a setting unit 303, a patterndetermining unit 304, a transmission control unit 305, and a displaycontrol unit 306. The portable control unit 30 sets setting informationthat includes identification information of the communication apparatus1, a password corresponding to the identification information, and touchinformation on a touch pattern to be drawn on the touch panel 14 of thecommunication apparatus 1 to establish the wireless communication withthe communication apparatus 1. When the touch information is comparedwith the touch information received from the communication apparatus 1and is identical with the touch information, the portable control unit30 establishes the wireless communication between the portable apparatus2 and the communication apparatus 1 and transmits the content data tothe communication apparatus 1.

The image processing unit 301 includes an image engine, and executesvarious kinds of image processing on image data input from the imagingunit 21 and outputs the image processing result to the recording unit 28or the display unit 26. The image processing unit 301 performs imageprocessing including at least a gain process of adjusting brightness ofan image, a gradation correction process of correcting a gradation, anedge process, a white balance process, a color correction process, and aγ correction process on image data. The image processing unit 301 maycompress image data according to the JPEG scheme and then causes thecompressed image data to be recorded in the recording unit 28.

The signalizing unit 302 converts a position signal continuously inputfrom the touch panel 27 into numerical values with reference to thesignalizing information recorded by the signalizing informationrecording unit 283. The position signal continuously input from thetouch panel 27 is converted into numerical values with reference to thesignalizing information recorded by the signalizing informationrecording unit 283. Specifically, the signalizing unit 302 converts atrajectory of the touch panel 27 by the user into numerical values(data).

The setting unit 303 sets touch information regarding a touch pattern tobe drawn on the touch panel 14 of the communication apparatus 1 toestablish the wireless communication with the communication apparatus 1.

The pattern determining unit 304 determines whether the touchinformation transmitted from the communication apparatus 1 via thetransceiving unit 22 is identical with the touch information set by thesetting unit 303.

When the touch information received by the transceiving unit 22 isidentical with the touch information set by the setting unit 303, thetransmission control unit 305 establishes the wireless communicationbetween the communication apparatus 1 and the portable apparatus 2 andcauses the transceiving unit 22 to transmit the content data to thecommunication apparatus 1.

The display control unit 306 causes the display unit 26 to display animage corresponding to the image data. The display control unit 306causes the display unit 26 to display a character or a trajectory drawnon the touch panel 27 by the user based on the position signal inputfrom the touch panel 27. Further, the display control unit 306 may causethe display unit 26 to display the setting information recorded by thesetting information recording unit 281.

The portable apparatus 2 having the above configuration may have a flashmechanism that irradiates fill light toward a specified field of viewregion.

FIG. 2 is a diagram for describing an outline of a communication processexecuted by the communication apparatus 1 and the portable apparatus 2.FIG. 3 is a diagram for schematically describing a state of FIG. 2. InFIGS. 2 and 3, the communication apparatus 1 is set to be in a playbackmode in which the content data recorded on the recording unit 15 isplayed back and displayed, and the portable apparatus 2 is set to be ina reception mode in which the content data is received from thecommunication apparatus 1.

As illustrated in FIG. 2, when the communication apparatus 1 performsthe wireless communication with the portable apparatus 2 in conformitywith a specified wireless communication standard and transmits thecontent data, the communication apparatus 1 receives the touchinformation converted in response to a touch operation on the touchpanel 27 from the portable apparatus 2. When the touch information isidentical with the touch information set by the setting unit 183, thecommunication apparatus 1 establishes the wireless communication withthe portable apparatus 2 and transmits the content data. For example, asillustrated in FIGS. 2 and 3, when a user O1 tells a user O2 that theuser O2 draws “4” with the portable apparatus 2 and the user O2 draws“4” on the touch panel 27 of the portable apparatus 2, the communicationapparatus 1 receives the touch information converted according to atrajectory which is drawn on the touch panel 27 of the portableapparatus 2 and is transmitted from the portable apparatus 2. When thetouch information is identical with the touch information set by thesetting unit 183, the communication apparatus 1 establishes the wirelesscommunication with the portable apparatus 2 and transmits the contentdata.

A technology for establishing the communication is generally realized byperforming negotiation by selection of identification information(apparatus ID) and reply of a password corresponding to theidentification information. However, in the first embodiment, theabove-described communication establishment may be performed whensetting the password used to establish the wireless communication afterthe selection of the identification information (apparatus ID). That is,both (one-to-many) users operate a simple operation (here, a touchoperation or a specific operation) for an instant password to performauthentication based on a contract agreed directly between persons.Since the communication apparatus 1 or the portable apparatus 2 convertthis operation into a stipulated password rule such as a characterstring according to a specific determination method, variouscommunication standards can be conformed to. At this time, sinceoperation authentication is entered after an operation of selecting theidentification information (apparatus ID), security can be improved andspoofing or the like can be prevented.

FIGS. 4A to 4C are diagrams illustrating a status when the wirelesscommunication is established between the communication apparatus 1 andthe portable apparatus 2.

As illustrated in FIGS. 4A to 4C, in the communication apparatus 1,first, the transmission control unit 185 causes the transceiving unit 16to transmit the identification information of the communicationapparatus 1 included in the setting information to the portableapparatus 2 and the setting unit 183 sets the touch information which isa password used to establish the wireless communication with theportable apparatus 2 (FIG. 4A). Specifically, the transmission controlunit 185 transmits the identification information (apparatus ID) of thecommunication apparatus 1 to an external apparatus such as the portableapparatus 2 present within a specified area. The setting unit 183 sets atrajectory of the touch panel 14 by the user as the touch informationused to establish the wireless communication with the portable apparatus2 and records the set touch information in correspondence with thesetting information of the communication apparatus 1 recorded by thesetting information recording unit 151. At this time, the signalizingunit 182 converts the trajectory of the touch panel 14 by the user intothe numerical values and records the numerical values in the settinginformation recording unit 151.

Subsequently, the portable apparatus 2 transmits the numerical valuesinto which the signalizing unit 302 converts the trajectory of the touchpanel 27 by the user as the touch information to the communicationapparatus 1 (FIG. 4B).

FIG. 5 is a diagram illustrating an overview of a method by which thesignalizing unit 302 converts the trajectory of the touch panel 27 bythe user into the numerical values. As illustrated in FIG. 5, thesignalizing unit 302 converts the trajectory of the touch panel 27 bythe user into the numeral based on a signalizing information table T1recorded by the signalizing information recording unit 283 and aposition signal input from the touch panel 27. For example, thesignalizing unit 302 performs numerical conversion (data conversion) ofa character drawn on the touch panel 27 by the user based on a touchstart position (upper and lower), a touch start position (right andleft), an initial slide (first-half), an initial slide (second-half),and the like of the touch panel 27 by the user. Specifically, when theuser draws “4” on the touch panel 27 and the touch start position of thetouch panel 27 by the user is 2/4 from the upper side and is in themidst, the signalizing unit 302 converts the character into “03” and“01.” Further, when the initial side (first-half) is the lower leftdirection and there is no initial slide (second-half), the signalizingunit 302 converts the character into “05” and “01.” Thereafter, thesignalizing unit 302 converts the character corresponding to thetrajectory of the touch panel 27 by the user into a numeral withreference to the signalizing information table T1.

Thereafter, when the touch information received from the portableapparatus 2 is identical with the touch information set by the settingunit 183, the transmission control unit 185 establishes the wirelesscommunication with the portable apparatus 2 and transmits the contentdata to the portable apparatus 2. Specifically, when the operationpattern (numerical value) of the touch information received from theportable apparatus 2 is identical with the operation pattern (numericalvalue) of the touch information set by the setting unit 183, thetransmission control unit 185 establishes the wireless communicationwith the portable apparatus 2 and transmits the content data to theportable apparatus 2 (FIG. 4C).

Thus, the user O2 of the portable apparatus 2 can establish the wirelesscommunication with the communication apparatus 1 and receive the contentdata using the portable apparatus 2 merely by performing an operationdesignated by the user of the communication apparatus 1 on the touchpanel 27 of the portable apparatus 2. Therefore, the wirelesscommunication can be established through the simple operation andsecurity is superior.

Next, an outline of a process executed by the communication apparatus 1will be described. FIG. 6 is a flowchart illustrating an outline of aprocess executed by the communication apparatus 1. The same process asin the flowchart illustrated in FIG. 6 may be performed by the portableapparatus 2.

The description will proceed in connection with an example in which thecommunication apparatus 1 is set to the shooting mode (Yes in step S101)as illustrated in FIG. 6. In this case, the communication apparatus 1starts imaging (step S102), the display control unit 186 causes a liveview image imaged by the imaging unit 11 to be displayed on the displayunit 13 (step S103).

Subsequently, when it is determined that a release signal has been inputthrough the input unit 12 (Yes in step S104), the communicationapparatus 1 executes shooting (step S105). Specifically, thecommunication apparatus 1 performs a process of generating image data tobe generated by causing the imaging unit 11 to execute the shootingoperation, causing the image processing unit 181 to execute imageprocessing on the image data, and recording the image processing resultin the recording unit 15. However, when it is determined that therelease signal has not been input through the input unit 12 (No in stepS104), the communication apparatus 1 causes the process to proceed tostep S106.

Thereafter, the communication apparatus control unit 18 determineswhether an imaging process or a playback process of the communicationapparatus 1 ends, when the power of the communication apparatus 1 entersthe OFF state or the communication apparatus 1 enters a standby state(step S106). When the communication apparatus control unit 18 determinesthat the imaging process or the playback process of the communicationapparatus 1 ends (Yes in step S106), the communication apparatus 1 endsthe process. Conversely, when the communication apparatus control unit18 determines that the imaging process or the playback process of thecommunication apparatus 1 does not end (No in step S106), thecommunication apparatus 1 causes the process to return to step S101.

Next, an example in which the communication apparatus 1 is not set tothe shooting mode (No in step S101) but the communication apparatus 1 isset to the playback mode (Yes in step S107) will be described. In thiscase, the display control unit 186 causes images (thumbnail images)respectively corresponding a plurality of pieces of image data recordedby the recording unit 15 to be listed and displayed on the display unit13 (step S108).

Then, when a playback image to be enlarged and played back is selectedfrom the list of the displayed images (Yes in step S109), the displaycontrol unit 186 enlarges and plays back the selected image (step S110).Conversely, when the playback image expanded and played back is notselected from an image displayed in a list within a given time (No instep S109), the communication apparatus 1 causes the process to proceedto step S106.

In step S111, the communication apparatus control unit 18 determineswhether a touch operation is performed on the touch panel 14.Specifically, the communication apparatus control unit 18 determineswhether the position signal is input from the touch panel 14. When thecommunication apparatus control unit 18 determines that the touchoperation is performed on the touch panel 14 (Yes in step S111), thecommunication apparatus 1 causes the process to proceed to step S112 tobe described below. Conversely, when the communication apparatus controlunit 18 determines that the touch operation is not performed on thetouch panel 14 (No in step S111), the communication apparatus 1 causesthe process to proceed to step S106.

In step S112, the setting unit 183 records the setting information ofthe communication apparatus 1 recorded by the setting informationrecording unit 151 and the touch information used to establish thewireless communication with the portable apparatus 2 according to thetouch operation on the touch panel 14 by the user in correspondencetherewith in the setting information recording unit 151. At this time,the setting unit 183 may record the numerical values into which thetouch operation is converted by the signalizing unit 182 as the touchinformation in correspondence with the setting information of thecommunication apparatus 1 in the setting information recording unit 151.

Subsequently, the communication apparatus control unit 18 determineswhether the transceiving unit 16 receives the touch informationperformed on the touch panel 27 of the portable apparatus 2 (step S113).When the communication apparatus control unit 18 determines that thetransceiving unit 16 receives the touch information performed on thetouch panel 27 of the portable apparatus 2 (Yes in step S113), thecommunication apparatus 1 causes the process to proceed to step S114.Conversely, when the communication apparatus control unit 18 determinesthat the transceiving unit 16 does not receive the touch informationperformed on the touch panel 27 of the portable apparatus 2 (No in stepS113), the communication apparatus 1 causes the process to proceed tostep S106.

Subsequently, the pattern determining unit 184 determines whether theoperation pattern of the touch information received by the transceivingunit 16 is identical with the operation pattern of the touch informationrecorded by the setting information recording unit 151 (step S114). Whenthe pattern determining unit 184 determines that the operation patternof the touch information received by the transceiving unit 16 isidentical with the operation pattern of the touch information recordedby the setting information recording unit 151 (Yes in step S114), thetransmission control unit 185 causes the transceiving unit 16 totransmit the content data to the portable apparatus 2 (step S115).Thereafter, the communication apparatus 1 causes the process to proceedto step S106.

When the pattern determining unit 184 determines that the operationpattern of the touch information received by the transceiving unit 16 isnot identical with the operation pattern of the touch informationrecorded by the setting information recording unit 151 in step S114 (Noin step S114), the communication apparatus 1 causes the process toproceed to step S106. At this time, the display control unit 186 maycause the display unit 13 to display a warning indicating that theoperation patterns are different.

Next, a case will be described in which the playback mode is not set instep S107 (No in step S107) and the reception mode is set (Yes in stepS116). In this case, the communication apparatus control unit 18determines whether the touch operation is performed on the touch panel14 (step S117). When the communication apparatus control unit 18determines that the touch operation is performed on the touch panel 14(Yes in step S117), the communication apparatus 1 causes the process toproceed to step S118. Conversely, when the communication apparatuscontrol unit 18 determines that the touch operation is not performed onthe touch panel 14 (No in step S117), the communication apparatus 1causes the process to proceed to step S106.

In step S118, the signalizing unit 182 determines the trajectory of thetouch panel 14 by the user. At this time, the signalizing unit 182converts the trajectory of the touch panel 14 by the user into thenumerical values as the touch information. The trajectory of the touchpanel operation by the user can be said to be a “trajectory of thetouch” or the temporal change information of the touch position.Subsequently, the transmission control unit 185 causes the transceivingunit 16 to transmit the numerical values converted by the signalizingunit 182 as the touch information to the portable apparatus 2 (stepS119).

Thereafter, the communication apparatus control unit 18 determineswhether the content data is received from the portable apparatus 2 (stepS120). When the communication apparatus control unit 18 determines thatthe content data is received from the portable apparatus 2 (Yes in stepS120), the communication apparatus 1 causes the process to proceed tostep S121. Conversely, when the communication apparatus control unit 18determines that the content data is not received from the portableapparatus 2 (No in step S120), the communication apparatus 1 causes theprocess to proceed to step S106. At this time, when the communicationapparatus 1 does not receive the content data within the given time fromthe portable apparatus 2, the display control unit 186 may cause thedisplay unit 13 to display a warning indicating that the content datamay not be received.

In step S121, the display control unit 186 causes the display unit 13 todisplay an image corresponding to the content data received from theportable apparatus 2. When the content data received from the portableapparatus 2 is audio data, the communication apparatus control unit 18causes the audio I/O unit 17 to play back the audio data. Thereafter,the communication apparatus 1 causes the process to proceed to stepS106.

When the communication apparatus 1 is not set to the reception mode instep S116 (No in step S116), the communication apparatus 1 causes theprocess to proceed to step S106.

In the first embodiment of the invention described above, when the touchinformation received by the transceiving unit 16 is identical with thetouch information set by the setting unit 183, the transmission controlunit 185 establishes the wireless communication between the portableapparatus 2 and the communication apparatus 1 and causes thetransceiving unit 16 to transmit the content data to the portableapparatus 2. Thus, the security is excellent, and it is possible toperform two-way wireless communication with another external apparatusby an easy operation.

Further, according to the first embodiment, the present invention can besimply applied to communication establishment based on an apparatus ID(identification information) and a password used in many communicationstandards, an ID of an apparatus can be simply acquired, a password usedto transmit content data can be freely set by a promise of a placebetween users, and the security can be increased.

In the first embodiment, since the degree of freedom of the process forthe communication establishment on the touch panel 14 or the touch panel27 is improved and a variety of simple processes are changed orincreased at that place to select a process suitable for a situation.Accordingly, the process of establishing the wireless communication canbe considerably simplified and security can be improved.

In the first embodiment, the identification information (apparatus ID)can be substituted with a sign or a character obtainable through thetouch operation. That is, when the first half of the pattern written bythe transmitting side is set as a portion configured to set theapparatus ID and the second half of the pattern is determined to serveas the password, various communication standards can be likewiseconformed to. Therefore, when many apparatuses are communicationcandidates, the process of selecting an apparatus with which thecommunication is desired to be performed can be omitted, and thus thecommunication establishment can be performed through a simpler process.The communication establishment can be selected to various degrees offreedom according to the communication at the place, and thus thesecurity can be improved. The degrees of freedom can be considerablyvaried by a procedure in which a finger or the like is moved in thetwo-dimensional space of the touch panel 14.

In the first embodiment, since a process such as a touch or a slide onthe touch panel 14 is a process performed on the panel with a restrictedarea, anyone can simply perform an operation. Since communication both(or plural) sides imitate a motion of a finger or the like watching atthe place, the communication both (or plural) sides may imitate afavorite sign, scribble, or the like as well as a character. Since anoperation can be performed in a sense to write a character or a sense todraw a picture, a friendly operation common to humans can be performed,and thus the difficulty level of a difficult communication establishmentmethod can be decreased. The trajectory of the touch panel operationperformed by the user can be said to be a “trajectory of a touch” or thetemporal change information of a touch position. When a specificcharacter or picture is drawn by touch, the trajectory can be said to bedrawing information by the touch. In a case of a character, either userdoes not need to input a touch.

In the first embodiment, a technique can be realized in a sense to makean attempt even for a user who has no confidence of communication. Thatis, the user can overcome a psychological hurdle and the use can be alsopromoted.

In the first embodiment, the setting unit 183 and the setting unit 303record the touch information as the password on the setting informationrecording unit 151 or the setting information recording unit 281,respectively. However, the touch information may not be recorded everytime. In this case, the setting unit 183 or the setting unit 303 may setthe touch information, while the user presses the input unit 12, forexample, only when the user maintains a pressing state of a switch suchas an operation switch or an operation dial. Thus, the security can befurther improved.

Second Embodiment

Next, a second embodiment of the invention will be described. Acommunication apparatus and a portable apparatus according to the secondembodiment have the same configuration as those of the above-describedembodiment. Touch information as a password and a process are differentwhen content data is transmitted and received. Therefore, processesperformed by the communication apparatus and the portable apparatusaccording to the second embodiment will be described below, after thetouch information is described as the password when the communicationapparatus and the portable apparatus according to the second embodimenttransmit and receive the content data. The same reference numerals aregiven to units having the same configurations as those of the firstembodiment described above to make the description.

FIG. 7 is a diagram illustrating the overview of a communication processperformed by a communication apparatus 1 and a portable apparatus 2.FIG. 8 is a diagram schematically illustrating a status of FIG. 7. InFIGS. 7 and 8, the communication apparatus 1 is set to a playback modeand the portable apparatus 2 is set to a shooting mode.

As illustrated in FIGS. 7 and 8, when the communication apparatus 1performs the wireless communication with the portable apparatus 2 andtransmits the content data in conformity with a specified wirelesscommunication standard, the portable apparatus 2 continuously images thedisplay unit 13 of the communication apparatus 1 and receives the touchinformation on an operation which is substantially the same as thetrajectory of the touch panel 14 of the user shown in a live view imagedisplayed on the display unit 26 of the portable apparatus 2. When thetouch information is identical with the touch information set by thesetting unit 183, the portable apparatus 2 transmits the content data.For example, as illustrated in FIGS. 7 and 8, when the user O1 tells theuser O2 that the user O2 traces a motion and the user O2 images thecommunication apparatus 1 using the portable apparatus 2 and performsthe same trajectory as the trajectory performed on the touch panel 14 ofthe communication apparatus 1 by the user O1 on the touch panel 27 ofthe portable apparatus 2, while viewing the live view image displayed onthe display unit 26 of the portable apparatus 2, the communicationapparatus 1 establishes the wireless communication with the portableapparatus 2 and transmits the content data.

Thus, the user O2 of the portable apparatus 2 can receive the contentdata using the portable apparatus 2 merely by tracing the same motion asthe trajectory performed on the touch panel 14 by the user O1 anddisplayed by the display unit 26 of the portable apparatus 2 on thetouch panel 27 of the portable apparatus 2, while imaging the trajectoryof the touch panel 14 by the user O1 using the portable apparatus 2.

Next, the overview of a process performed by the communication apparatus1 will be described. FIG. 9 is a flowchart illustrating the overview ofthe process performed by the communication apparatus 1. The flowchartillustrated in FIG. 9 can be also performed likewise by the portableapparatus 2.

Steps S201 to S203 correspond to steps S101 to S103 of FIG. 6,respectively.

In step S204, the communication apparatus control unit 18 determineswhether a touch operation is performed on the touch panel 14. When thecommunication apparatus control unit 18 determines that the touchoperation is performed on the touch panel 14 (Yes in step S204), thecommunication apparatus 1 causes the process to proceed to step S205 tobe described below. Conversely, when the communication apparatus controlunit 18 determines that the touch operation is not performed on thetouch panel 14 (No in step S204), the communication apparatus 1 causesthe process to proceed to step S209 to be described below.

In step S205, the transmission control unit 185 transmits the trajectoryof the touch panel 14 by the user as touch information to the portableapparatus 2.

Subsequently, the communication apparatus control unit 18 determineswhether the content data is received from the portable apparatus 2 (stepS206). When the communication apparatus control unit 18 determines thatthe content data is received from the portable apparatus 2 (Yes in stepS206), the display control unit 186 causes the display unit 13 todisplay the content data received from the portable apparatus 2 (stepS207).

Thereafter, the communication apparatus control unit 18 determineswhether an imaging process or a playback process of the communicationapparatus 1 ends, when the power of the communication apparatus 1 entersthe OFF state or the communication apparatus 1 enters a standby state(step S208). When the communication apparatus control unit 18 determinesthat the imaging process or the playback process of the communicationapparatus 1 ends (Yes in step S208), the communication apparatus 1 endsthe process. Conversely, when the communication apparatus control unit18 determines that the imaging process or the playback process of thecommunication apparatus 1 does not end (No in step S208), thecommunication apparatus 1 causes the process to return to step S201.

When the communication apparatus control unit 18 determines that thecontent data is not received from the portable apparatus 2 in step S206(No in step S206), the communication apparatus 1 causes the process toproceed to step S209.

Step S209 and step S210 correspond to step S104 and step S105 of FIG. 6,respectively. Further, step S211 to step S215 correspond to step S107 tostep S111 of FIG. 6, respectively.

In step S216, the display control unit 186 causes the display unit 13 todisplay the trajectory according to the touch operation of the touchpanel 14 by the user. Specifically, as illustrated in FIG. 8, thedisplay control unit 186 causes the display unit 13 to display thetrajectory of the touch panel 14 by the user based on the positionsignals continuously input from the touch panel 14.

Subsequently, the communication apparatus control unit 18 determineswhether the transceiving unit 16 receives the touch information from theportable apparatus 2 (step S217). When the communication apparatuscontrol unit 18 determines that the transceiving unit 16 receives thetouch information from the portable apparatus 2 (Yes in step S217), thecommunication apparatus 1 causes the process to proceed to step S218 tobe described below. Conversely, when the communication apparatus controlunit 18 determines that the transceiving unit 16 does not receive thetouch information from the portable apparatus 2 (No in step S217), thecommunication apparatus 1 causes the process to proceed to step S208.

In step S218, the pattern determining unit 184 determines whether thedegree of coincidence between the trajectory of the touch panel 27 ofthe portable apparatus 2 included in the pattern information received bythe transceiving unit 16 and the trajectory of the touch panel 14 set bythe setting unit 183 of the communication apparatus 1 falls within aspecified range. When the pattern determining unit 184 determines thatthe degree of coincidence between the trajectory of the touch panel 14of the portable apparatus 2 included in the touch information receivedby the transceiving unit 16 and the trajectory of the touch panel 14 setby the setting unit 183 of the communication apparatus 1 falls within aspecified range (Yes in step S218), the transmission control unit 185causes the transceiving unit 16 to transmit the content data to theportable apparatus 2 (step S219). Thereafter, the communicationapparatus 1 causes the process to proceed to step S208.

When the pattern determining unit 184 determines that the degree ofcoincidence between the trajectory of the touch panel 14 of the portableapparatus 2 included in the touch information received by thetransceiving unit 16 and the trajectory of the touch panel 14 set by thesetting unit 183 of the communication apparatus 1 does not fall withinthe specified range in step S218 (No in step S218), the display controlunit 186 causes the display unit 13 to display a warning indicating thatthe trajectory of the touch operation performed on the touch panel 27 ofthe portable apparatus 2 by the user does not coincide with thetrajectory of the touch operation performed on the touch panel 14 of thecommunication apparatus 1 (step S220). Thereafter, the communicationapparatus 1 causes the process to proceed to step S208.

In the above-described second embodiment of the invention, when thetrajectory of the touch information received by the transceiving unit 16coincides with the trajectory of the touch information set by thesetting unit 183, the transmission control unit 185 establishes thewireless communication between the portable apparatus 2 and thecommunication apparatus 1 and causes the transceiving unit 16 totransmit the content data to the portable apparatus 2. Thus, thesecurity can be superior and the bidirectional wireless communicationwith the portable apparatus 2 can be performed through a simpleoperation.

In the second embodiment, since the display control unit 186 causes thedisplay unit 13 to display the trajectory of the touch panel 14 by theuser in an identifiable manner, the imaging can be continuouslyperformed with the portable apparatus 2 receiving the content data andthe trajectory of the touch panel 14 in the live view image displayed bythe display unit 26 can be easily traced. Thus, the bidirectionalwireless communication can be established through a simpler operationwith the portable apparatus 2 and the content data can be transmittedand received.

In the second embodiment, the identification information (apparatus ID)may be also substituted with a sign or a character obtainable throughthe touch operation. That is, when the first half of the pattern writtenby the transmitting side is set as a portion configured to set theapparatus ID and the second half of the pattern is determined to serveas the password, various communication standards can be likewiseconformed to. Therefore, when many apparatuses are communicationcandidates, the process of selecting an apparatus with which thecommunication is desired to be performed can be omitted, and thus thecommunication establishment can be performed through a simpler process.The communication establishment can be selected to various degrees offreedom according to the communication at the place, and thus thesecurity can be improved. The degrees of freedom can be considerablyvaried by a procedure in which a finger or the like is moved in thetwo-dimensional space of the touch panel 14.

In the second embodiment, since a process such as a touch or a slide onthe touch panel 14 is a process performed on the panel with a restrictedarea, anyone can simply perform an operation. Since both (or plural)communication sides imitate a motion of a finger or the like watching atthe place, the communication both (or plural) sides may imitate afavorite sign, scribble, or the like as well as a character. Since anoperation can be performed in a sense to write a character or a sense todraw a picture, a friendly operation common to humans can be performed,and thus the difficulty level of a difficult communication establishmentmethod can be decreased.

In the second embodiment, a technique can be realized in a sense to makean attempt even for a user who has no confidence of communication. Thatis, the user can overcome a psychological hurdle and the use can be alsopromoted.

Third Embodiment

Next, a third embodiment of the invention will be described. In thethird embodiment, wireless communication is established and content datais transmitted, when characters drawn on touch panels of a communicationapparatus and a portable apparatus through touch operations areidentical with each other. Therefore, processes performed by thecommunication apparatus and the portable apparatus according to thethird embodiment will be described below, after the configurations ofthe communication apparatus and the portable apparatus according to thethird embodiment are described. The same reference numerals are given tounits having the same configurations as those of the first embodimentdescribed above to make the description.

FIG. 10 is a block diagram illustrating the configurations of acommunication apparatus 100 and a portable apparatus 200 according tothe third embodiment. The communication apparatus 100 illustrated inFIG. 10 includes an imaging unit 11, an input unit 12, a display unit13, a recording unit 110, a transceiving unit 16, an audio I/O unit 17,and a communication apparatus control unit 120.

The recording unit 110 includes a semiconductor memory such as a flashmemory or a DRAM. The recording unit 110 includes a setting informationrecording unit 151, a content information recording unit 152, asignalizing information recording unit 153, and a character informationrecording unit 111. The character information recording unit 111 recordscharacter information when the communication apparatus control unit 120converts a trajectory of the touch panel 14 by a user into a characterby pattern matching or the like.

The communication apparatus control unit 120 includes a CPU or the like.The communication apparatus control unit 120 controls a process of theportable apparatus 200 en bloc, for example, by giving an instructioncorresponding to each unit of the communication apparatus 100 accordingto an instruction signal, a switching signal, or the like from the inputunit 12 or the touch panel 14 or transmitting data.

The detailed configuration of the communication apparatus control unit120 will be described. The communication apparatus control unit 120includes an image processing unit 181, a display control unit 186, acharacter converting unit 121, a setting unit 122, a characterdetermining unit 123, a transmission control unit 124, and acommunication unit 29.

The character converting unit 121 detects an approximate characterthrough pattern matching on the trajectory of the touch panel 14 by theuser based on the position signal input from the touch panel 14 and thecharacter information recorded by the character information recordingunit 111, and then converts the detected character as characterinformation. For example, when the user draws “4” on the touch panel 14,the character converting unit 121 detects “4” as an approximatecharacter through the pattern matching with reference to the characterinformation recorded by the character information recording unit 111 andconverts the detected character as the character information.

The setting unit 122 sets the character information converted by thecharacter converting unit 121 as touch information used to establish thewireless communication with the portable apparatus 200 in the settinginformation of the communication apparatus 100 recorded by the settinginformation recording unit 151. The setting unit 122 records the touchinformation on the setting information recording unit 151.

The character determining unit 123 determines whether the characterinformation as touch information received from the portable apparatus200 by the transceiving unit 16 and used to establish the wirelesscommunication with the communication apparatus 100 is identical with thecharacter information as the touch information caused to correspond tothe setting information recorded by the setting information recordingunit 151.

The transmission control unit 124 establishes the wireless communicationwith the portable apparatus 200 based on the determination result of thecharacter determining unit 123 and causes the transceiving unit 16 totransmit the content data to the portable apparatus 200. Specifically,when the character determining unit 123 determines that the characterinformation received by the transceiving unit 16 is identical with thecharacter information as the touch information recorded by the settinginformation recording unit 151, the transmission control unit 124establishes the wireless communication with the portable apparatus 200and causes the transceiving unit 16 to transmit the content data to theportable apparatus 200.

Next, the portable apparatus 200 will be described. The portableapparatus 200 includes an imaging unit 21, transceiving unit 22, anaudio I/O unit 23, a geomagnetic detecting unit 24, an input unit 25, adisplay unit 26, a touch panel 27, a recording unit 210, and a portablecontrol unit 220.

The recording unit 210 includes a semiconductor memory such as a flashmemory or a DRAM. The recording unit 210 includes a setting informationrecording unit 281, a content information recording unit 282, asignalizing information recording unit 283, and a character informationrecording unit 211. The character information recording unit 211 recordscharacter information when a trajectory of the touch panel 27 by a useris converted into a character by pattern matching or the like.

The portable control unit 220 includes a CPU or the like. The portablecontrol unit 220 controls a process of the portable apparatus 200 enbloc, for example, by giving an instruction corresponding to each unitof the portable apparatus 200 according to an instruction signal, aswitching signal, or the like from the input unit 25 or the touch panel27 or transmitting data.

The detailed configuration of the portable control unit 220 will bedescribed. The portable control unit 220 includes an image processingunit 301, a display control unit 306, a character converting unit 221, asetting unit 222, a character determining unit 223, and a transmissioncontrol unit 224.

The character converting unit 221 detects an approximate characterthrough pattern matching on the trajectory of the touch panel 27 by theuser based on the position signal input from the touch panel 27 and thecharacter information recorded by the character information recordingunit 211, and then converts the detected character as characterinformation.

The setting unit 222 sets the character information converted by thecharacter converting unit 221 as touch information indicating a passwordused to establish the wireless communication with the communicationapparatus 100 in the setting information of the portable apparatus 200recorded by the setting information recording unit 281. The setting unit222 records the character information converted by the characterconverting unit 221 as the touch information indicating the passwordused to establish the wireless communication with the communicationapparatus 100 on the setting information recording unit 281.

The character determining unit 223 determines whether the characterinformation as touch information received from the communicationapparatus 100 by the transceiving unit 22 and used to establish thewireless communication with the portable apparatus 200 is identical withthe character information as the touch information caused to correspondto the setting information recorded by the setting information recordingunit 281.

The transmission control unit 224 establishes the wireless communicationwith the communication apparatus 100 based on the determination resultof the character determining unit 223 and causes the transceiving unit22 to transmit the content data to the communication apparatus 100.

The overview of the process performed by the communication apparatus 100with the above-described configuration will be described. FIG. 11 is aflowchart illustrating the overview of the process performed by thecommunication apparatus 100. The flowchart illustrated in FIG. 11 can bealso performed likewise by the portable apparatus 200.

Step S301 to step S311 correspond to step S101 to step S111 of FIG. 6,respectively.

In step S312, the character converting unit 121 converts a touchoperation of the touch panel 14 by the user into character information.

Subsequently, the setting unit 122 records the character informationconverted by the character converting unit 121 as the touch informationindicating the password used to establish the wireless communicationwith the portable apparatus 200 in correspondence with the settinginformation of the communication apparatus 100 on the settinginformation recording unit 151 (step S313).

Thereafter, the communication apparatus control unit 120 determineswhether the transceiving unit 16 receives the character information fromthe portable apparatus 200 (step S314). When the communication apparatuscontrol unit 120 determines that the transceiving unit 16 receives thecharacter information from the portable apparatus 200 (Yes in stepS314), the communication apparatus 100 causes the process to proceed tostep S315 to be described below. Conversely, when the communicationapparatus control unit 120 determines that the transceiving unit 16 doesnot receive the character information from the portable apparatus 200(No in step S314), the communication apparatus 100 causes the process toproceed to step S306.

In step S315, the character determining unit 123 determines whether thecharacter information received from the portable apparatus 200 by thetransceiving unit 16 is identical with the character information as thetouch information caused to correspond to the setting informationrecorded by the setting information recording unit 151. When thecharacter determining unit 123 determines that the character informationreceived from the portable apparatus 200 by the transceiving unit 16 isidentical with the character information as the touch information causedto correspond to the setting information recorded by the settinginformation recording unit 151 (Yes in step S315), the transmissioncontrol unit 124 causes the transceiving unit 16 to transmit the contentdata to the portable apparatus 200 (step S316). Thereafter, thecommunication apparatus 100 causes the process to proceed to step S306.Conversely, when the character determining unit 123 determines that thecharacter information received from the portable apparatus 200 by thetransceiving unit 16 is not identical with the character information asthe touch information caused to correspond to the setting informationrecorded by the setting information recording unit 151 (No in stepS315), the communication apparatus 100 causes the process to proceed tostep S306.

Step S317 and step S318 correspond to step S116 and step S117 of FIG. 6,respectively.

In step S319, the character converting unit 121 converts the trajectoryof the touch panel 14 by the user into character information.

Subsequently, the transmission control unit 124 causes the transceivingunit 16 to transmit the character information converted by the characterconverting unit 121 to the portable apparatus 200 (step S320).

Step S321 and step S322 correspond to step S120 and step S121 of FIG. 6,respectively.

In the above-described third embodiment of the invention, when thecharacter information as the touch information received by thetransceiving unit 16 is identical with the character information as thetouch information set by the setting unit 122, the transmission controlunit 124 establish the wireless communication between the portableapparatus 200 and the communication apparatus 100 and causes thetransceiving unit 16 to transmit the content data to the portableapparatus 200. Thus, the security can be superior, the bidirectionalwireless communication with the portable apparatus 200 can be performedthrough a simple operation, and the content data can be transmitted.

In the third embodiment, since the character drawn on the touch panel 14by the user serves as the password used to establish the wirelesscommunication between the communication apparatus 100 and the portableapparatus 200, the password used to establish the wireless communicationcan be performed through a simple operation.

In the third embodiment, the identification information (apparatus ID)may be also substituted with a sign or a character obtainable throughthe touch operation. That is, when the first half of the pattern writtenby the transmitting side is set as a portion configured to set theapparatus ID and the second half of the pattern is determined to serveas the password, various communication standards can be likewiseconformed to. Therefore, when many apparatuses are communicationcandidates, the process of selecting an apparatus with which thecommunication is desired to be performed can be omitted, and thus thecommunication establishment can be performed through a simpler process.The communication establishment can be selected to various degrees offreedom according to the communication at the place, and thus thesecurity can be improved. The degrees of freedom can be considerablyvaried by a procedure in which a finger or the like is moved in thetwo-dimensional space of the touch panel 14.

In the third embodiment, since a process such as a touch or a slide onthe touch panel 14 is a process performed on the panel with a restrictedarea, anyone can simply perform an operation. Since both (or plural)communication sides imitate a motion of a finger or the like watching atthe place, the communication both (or plural) sides may imitate afavorite sign, scribble, or the like as well as a character. Since anoperation can be performed in a sense to write a character or a sense todraw a picture, a friendly operation common to humans can be performed,and thus the difficulty level of a difficult communication establishmentmethod can be decreased.

In the third embodiment, a technique can be realized in a sense to makean attempt even for a user who has no confidence of communication. Thatis, the user can overcome a psychological hurdle and the use can be alsopromoted.

In the third embodiment, the character converting unit 121 converts thetrajectory of the touch panel 14 into a character approximate to thetrajectory. However, for example, an audio input from the audio I/O unit17 may be analyzed and the audio may be converted into a characterapproximate to the analyzed audio. Thus, the password can be set whenthe wireless communication is established through a simpler operation.

Fourth Embodiment

Next, a fourth embodiment of the invention will be described. In thefourth embodiment, when a temporal change of a trajectory on a touchpanel by a user is identical, wireless communication is establishedbetween a communication apparatus and a portable apparatus and contentdata is bidirectionally transmitted and received. Therefore, processesperformed by the communication apparatus and the portable apparatusaccording to the fourth embodiment will be described below, after thecommunication apparatus and the portable apparatus according to thefourth embodiment are described. The same reference numerals are givento units having the same configurations as those of the first embodimentdescribed above to make the description.

FIG. 12 is a block diagram illustrating the configurations of acommunication apparatus 400 and a portable apparatus 500 according tothe fourth embodiment. The communication apparatus 400 illustrated inFIG. 12 includes an imaging unit 11, an input unit 12, a display unit13, a touch panel 14, a recording unit 15, a transceiving unit 16, anaudio I/O unit 17, a posture detecting unit 401, a clock 402, and acommunication apparatus control unit 410.

The posture detecting unit 401 includes a triaxial acceleration sensor,a gyro sensor, and the like and detects the posture of the communicationapparatus 400. Specifically, the posture detecting unit 401 detects theposture of the communication apparatus 400, when it is assumed that X isthe vertical direction of the communication apparatus 400 and Y is thethickness direction of the communication apparatus 400. The posturedetecting unit 401 outputs the detected posture of the communicationapparatus 400 to the communication apparatus control unit 410.

The clock 402 has a timing function and an imaging date determiningfunction. The clock 402 outputs the current time to the communicationapparatus control unit 410 to add time data to imaged image data.

The communication apparatus control unit 410 includes a CPU or the like.The communication apparatus control unit 410 controls a process of thecommunication apparatus 400 en bloc, for example, by giving aninstruction corresponding to each unit of the communication apparatus400 according to an instruction signal, a switching signal, or the likefrom the input unit 12 or the touch panel 14 or transmitting data.

The detailed configuration of the communication apparatus control unit410 will be described. The communication apparatus control unit 410includes an image processing unit 181, a display control unit 186, atouch position determining unit 411, a setting unit 412, a patterndetermining unit 413, and a transmission control unit 414.

The touch position determining unit 411 determines the current touchposition of the user on the touch panel 14 based on the position signalinput from the touch panel 14 and the posture of the communicationapparatus 400 detected by the posture detecting unit 401.

The setting unit 412 records the temporally changed touch information onthe touch panel 14 by the user as a password used to establish thewireless communication with the portable apparatus 500 in correspondencewith the setting information of the communication apparatus 400 recordedby the setting information recording unit 151 on the setting informationrecording unit 151.

The pattern determining unit 413 determines whether the temporallychanged touch information received from the portable apparatus 500 bythe transceiving unit 16 and used to establish the wirelesscommunication with the portable apparatus 500 is identical with thetemporally changed touch information caused to correspond to the settinginformation recorded by the setting information recording unit 151.

The transmission control unit 414 establishes the wireless communicationwith the portable apparatus 500 based on the determination result of thepattern determining unit 413 and causes the transceiving unit 16 totransmit the content data to the portable apparatus 500. Specifically,when the pattern determining unit 413 determines that the temporallychanged touch information received by the transceiving unit 16 isidentical with the temporally changed touch information caused tocorrespond to the setting information recorded by the settinginformation recording unit 151, the transmission control unit 414establishes the wireless communication with the portable apparatus 500and causes the transceiving unit 16 to transmit the content data to theportable apparatus 500.

Next, the portable apparatus 500 will be described. The portableapparatus 500 includes an imaging unit 21, a transceiving unit 22, anaudio I/O unit 23, a geomagnetic detecting unit 24, an input unit 25, adisplay unit 26, a touch panel 27, a recording unit 28, a communicationunit 29, a posture detecting unit 501, a clock 502, and a portablecontrol unit 510. The posture detecting unit 501 and the clock 502 havethe same configurations as the posture detecting unit 401 and the clock402 of the communication apparatus 400, and thus the description thereofwill not be repeated.

The portable control unit 510 includes a CPU or the like. The portablecontrol unit 510 controls a process of the portable apparatus 500 enbloc, for example, by giving an instruction corresponding to each unitof the portable apparatus 500 according to an instruction signal, aswitching signal, or the like from the input unit 25 or the touch panel27 or transmitting data.

The detailed configuration of the portable control unit 510 will bedescribed. The portable control unit 510 includes an image processingunit 301, a display control unit 306, a touch position determining unit511, a setting unit 512, a pattern determining unit 513, and atransmission control unit 514.

The touch position determining unit 511 determines the current touchposition of the user on the touch panel 27 based on the position signalinput from the touch panel 27 and the posture of the portable apparatus500 detected by the posture detecting unit 501.

The setting unit 512 records the temporally changed touch information onthe touch panel 27 by the user as a password used to establish thewireless communication with the communication apparatus 400 incorrespondence with the setting information of the portable apparatus500 recorded by the setting information recording unit 281 on thesetting information recording unit 281.

The pattern determining unit 513 determines whether the temporallychanged touch information received from the communication apparatus 400by the transceiving unit 22 and used to establish the wirelesscommunication with the communication apparatus 400 is identical with thetemporally changed touch information caused to correspond to the settinginformation recorded by the setting information recording unit 281.

The transmission control unit 514 establishes the wireless communicationwith the communication apparatus 400 based on the determination resultof the pattern determining unit 513 and causes the transceiving unit 22to transmit the content data to the communication apparatus 400.

The overview of the communication process performed by the communicationapparatus 400 and the portable apparatus 500 with the above-describedconfigurations will be described. FIG. 13 is a diagram illustrating theoverview of the communication process performed by the communicationapparatus 400 and the portable apparatus 500. FIG. 14 is a diagramschematically illustrating a status of FIG. 13. In FIGS. 13 and 14, thecommunication apparatus 400 is set to the playback mode and the portableapparatus 500 is set to the shooting mode.

As illustrated in FIGS. 13 and 14, when the communication apparatus 400establishes the wireless communication with the portable apparatus 500in conformity with a specified wireless communication standard andtransmits the content data and when a touch operation is performed atthe same speed on the touch panel 14 of the communication apparatus 400as that on the touch panel 27 of the portable apparatus 500, thecommunication apparatus 400 establishes the wireless communication withthe portable apparatus 500 and transmits the content data. For example,as illustrated in FIGS. 13 and 14, when a user O1 tells a user O2 thatthe user O2 performs a touch operation at the same speed and the usersO1 and O2 perform slide operations at the same speed on the touch panel14 of the communication apparatus 400 and the touch panel 27 of theportable apparatus 500, respectively, the communication apparatus 400establishes the wireless communication with the portable apparatus 500and transmits the content data.

Thus, when the user O1 of the communication apparatus 400 and the userO2 of the portable apparatus 500 merely perform the slide operations atthe same speed on the touch panel 14 of the communication apparatus 400and the touch panel 27 of the portable apparatus 500, the wirelesscommunication can be established between the communication apparatus 400and the portable apparatus 500 and the content data can bebidirectionally transmitted and received.

Next, the overview of the process performed by the communicationapparatus 400 will be described. FIG. 15 is a flowchart illustrating theoverview of the process performed by the communication apparatus 400.The flowchart illustrated in FIG. 15 can be also performed likewise bythe portable apparatus 500.

Step S401 to step S411 correspond to step S101 to step S111 of FIG. 6,respectively.

In step S412, the setting unit 412 records the temporally changed touchposition on the touch panel 14 determined by the touch positiondetermining unit 411 in correspondence with the setting information ofthe communication apparatus 400 on the setting information recordingunit 151. FIG. 16 is a diagram schematically illustrating a status whenthe touch position determining unit 411 determines the touch position.FIG. 17 is a diagram illustrating a relation between a time and data ofthe touch position determined by the touch position determining unit411. In FIG. 17, the vertical axis indicates coordinates obtained byconverting the length direction (x axis) of the communication apparatus400 according to the posture of the communication apparatus 400 and thehorizontal axis indicates a time. As illustrated in FIGS. 16 and 17, thesetting unit 412 obtains data of the touch position determined by thetouch position determining unit 411 based on the posture of thecommunication apparatus 400 and records the data in correspondence withthe setting information on the setting information recording unit 151.Specifically, the setting unit 412 calculates a straight line L1approximating touch positions P1 to P4 detected specified timings by thetouch position determining unit 411 based on the touch positions P1 toP4, obtains data of angles θ_(x) formed between the calculated straightline L1 and the time, and records the data in correspondence with thesetting information on the setting information recording unit 151. Thesetting unit 412 calculates the straight line approximating the touchpositions based on the touch positions detected in the lateral direction(y axis) of the communication apparatus 400 at each specified timing bythe touch position determining unit 411, obtains data of the anglesθ_(y) formed between the calculated straight line L1 and the time, andrecords the data in correspondence with the setting information on thesetting information recording unit 151.

Subsequently, the communication apparatus control unit 410 determineswhether the transceiving unit 16 receives the touch information from theportable apparatus 500 (step S413). When the communication apparatuscontrol unit 410 determines that the transceiving unit 16 receives thetouch information from the portable apparatus 500 (Yes in step S413),the communication apparatus 400 causes the process to proceed to stepS414 to be described below. Conversely, when the communication apparatuscontrol unit 410 determines that the transceiving unit 16 does notreceive the touch information from the portable apparatus 500 (No instep S413), the communication apparatus 400 causes the process toproceed to step S406.

In step S414, the pattern determining unit 413 determines whether thetouch information received from the portable apparatus 500 by thetransceiving unit 16 and the touch information set by the setting unit412 are subjected to the same temporal change. When the patterndetermining unit 413 determines that the touch information received fromthe portable apparatus 500 by the transceiving unit 16 and the touchinformation set by the setting unit 412 are subjected to the sametemporal change (Yes in step S414), the transmission control unit 414causes the transceiving unit 16 to transmit the content data to theportable apparatus 500 (step S415). Thereafter, the communicationapparatus 400 causes the process to proceed to step S406. Conversely,when the pattern determining unit 413 determines that the touchinformation received from the portable apparatus 500 by the transceivingunit 16 and the touch information set by the setting unit 412 are notsubjected to the same temporal change (No in step S414), thecommunication apparatus 400 causes the process to proceed to step S406.

Step S416 to step S420 correspond to step S116 to step S121,respectively.

In the above-described fourth embodiment of the invention, when thetemporally changed touch information received by the transceiving unit16 is identical with the temporally changed touch information set by thesetting unit 412, the transmission control unit 414 establishes thewireless communication between the portable apparatus 500 and thecommunication apparatus 400 and causes the transceiving unit 16 totransmit the content data to the portable apparatus 500. Thus, thesecurity can be superior, the bidirectional wireless communication withthe portable apparatus 500 can be performed through a simple operation,and the content data can be transmitted.

In the fourth embodiment, the identification information (apparatus ID)may be substituted with a sign or a character obtainable through thetouch operation. That is, when the first half of the pattern written bythe transmitting side is set as a portion configured to set theapparatus ID and the second half of the pattern is determined to serveas the password, various communication standards can be likewiseconformed to. Therefore, when many apparatuses are communicationcandidates, the process of selecting an apparatus with which thecommunication is desired to be performed can be omitted, and thus thecommunication establishment can be performed through a simpler process.The communication establishment can be selected to various degrees offreedom according to the communication at the place, and thus thesecurity can be improved. The degrees of freedom can be variedconsiderably by a procedure in which a finger or the like is moved inthe two-dimensional space of the touch panel 14.

In the fourth embodiment, since a process such as a touch or a slide onthe touch panel 14 is a process performed on the panel with a restrictedarea, anyone can simply perform an operation. Since both (or plural)communication sides imitate a motion of a finger or the like watching atthat place, the communication both (or plural) sides may imitate afavorite sign, scribble, or the like as well as a character. Since anoperation can be performed in a sense to write a character or a sensorto draw a picture, a friendly operation common to humans can beperformed, and thus the difficulty level of a difficult communicationestablishment method can be decreased.

In the fourth embodiment, a technique can be realized in a sense to makean attempt even for a user who has no confidence of communication. Thatis, the user can overcome a psychological hurdle and the use can be alsopromoted.

Other Embodiments

In the invention, application can be realized such that a transmittingside establishes communication by performing a touch of designating areceiving side. In general, it is naturally considered that a receivingside spends a time and an effort. Depending on a relation between demandand supply, only when a receiving side gives permission, as inadvertisement, a transmitting side may perform a designated drawingtouch to perform communication.

In the present invention, content data and setting information arebidirectionally transmitted and received through the transceiving unit,but each of the communication apparatus and the portable apparatus mayinclude a communication unit connectable to the Internet, content dataand setting information may be bidirectionally transmitted and receivedvia a network. Further, content data and setting information may bebidirectionally transmitted and received via a server on a network.

The invention may be applied even to a communication apparatus thatperforms bidirectional wireless communication with a portable apparatusthat includes a touch panel detecting a touch of an object from theoutside and receiving an input of a position signal according to adetected position, and transmits content data including image data. Inthis case, the communication apparatus includes a transceiving unit thatis able to transmit the content data to the portable apparatus andreceives trajectory information of the touch from the portableapparatus; and a transmission control unit that establishes the wirelesscommunication between the portable apparatus and the communicationapparatus and causes the transceiving unit to transmit the content datato the portable apparatus, when the trajectory information of the touchreceived by the transceiving unit is substantially identical with apreset trajectory of the touch. Thus, the security can be superior andthe bidirectional wireless communication with another external apparatuscan be performed through a simple operation.

The invention may be applied even to a communication apparatus thatperforms bidirectional wireless communication with a portable apparatusthat includes a touch panel detecting a touch of an object from theoutside and receiving an input of a position signal according to adetected position, and transmits content data including image data. Inthis case, the communication apparatus includes a transceiving unit thatis able to transmit the content data to the portable apparatus andreceives character information drawn by the touch from the portableapparatus; and a transmission control unit that performs the wirelesscommunication between the portable apparatus and the communicationapparatus, when drawing information of the touch received by thetransceiving unit is substantially identical with preset characterinformation. Thus, the security can be superior and the bidirectionalwireless communication with another external apparatus can be performedthrough a simple operation.

The invention may be applied even to a communication apparatus thatperforms bidirectional wireless communication with a portable apparatusthat includes a touch panel detecting a touch of an object from theoutside and receiving an input of a position signal according to adetected position, and transmits content data including image data. Inthis case, the communication apparatus includes: a display unit thatdisplays an image corresponding to the image data; a second touch panelthat is superimposed on the display unit, detects a touch of an objectfrom the outside, and receives an input of a position signal accordingto a detected position; and a display control unit that causes thedisplay unit to display a trajectory of a touch operation performed onthe second touch panel based on the position signal input from thesecond touch panel. Thus, the user can perform an intuitive operation toset a password and the bidirectional wireless communication can beperformed with another external apparatus through a simple operation.

Further, in the present invention, the imaging unit has been describedin connection with an example of a digital camera installed in onehousing, but can be applied to a single-lens reflex digital cameraconfigured with a lens device having a removable lens unit and a mainbody.

Further, the communication apparatus according to the present inventioncan be applied to an electronic apparatus such as a digital camera witha removable accessory, a digital video camera, a mobile phone having ashooting function, and a table type portable apparatus as well as adigital camera.

Further, a program executed by a communication apparatus according tothe present invention is file data having an installable format or anexecutable format, and recorded in a computer readable recording mediumsuch as a CD-ROM, a flexible disk (FD), a CD-R, a digital versatile disk(DVD), a USB medium, and a flash memory and provided.

Further, a program executed by a communication apparatus according tothe present invention may be configured to be provided such that theprogram is stored in a computer connected to a network such as theInternet and downloaded via the network. Further, a program executed bythe display device according to the present invention may be configuredto be provided or distributed via a network such as the Internet.

In the description of the flowchart in this disclosure, a sequence ofthe process between steps is represented using expressions such as“first,” “thereafter,” and “next,” but the sequence of the processnecessary to implement the present invention is not uniquely decided bythe expression. In other words, the sequence of the process in theflowchart described in this disclosure can be changed within a rangehaving no contradiction.

As described above, the present invention includes various embodimentswhich are not described in this disclosure, and various design changescan be made within a range of a technical spirit set forth in claims.

Additional Note

A communication apparatus performs bidirectional wireless communicationwith a portable apparatus having a touch panel configured to detect atouch of an object from outside and to receive an input of a positionsignal according to a detected position, and transmits content dataincluding image data.

The communication apparatus includes a control unit that sets settinginformation including identification information of the portableapparatus, a password corresponding to the identification information,and touch information on a touch pattern to be drawn on the touch panelof the portable apparatus to establish the wireless communication withthe portable apparatus; and that establishes the wireless communicationbetween the portable apparatus and the communication apparatus andtransmits the content data to the portable apparatus when the touchinformation is identical with touch information received from theportable apparatus.

Additional advantages and modifications will readily occur to thoseskilled in the art. Therefore, the invention in its broader aspects isnot limited to the specific details and representative embodiments shownand described herein. Accordingly, various modifications may be madewithout departing from the spirit or scope of the general inventiveconcept as defined by the appended claims and their equivalents.

What is claimed is:
 1. A communication apparatus that performsbidirectional wireless communication with a portable apparatus having atouch panel configured to detect a touch of an object from outside andto receive an input of a position signal according to a detectedposition, and transmits content data including image data, thecommunication apparatus comprising: a transceiving unit that transmitsthe content data to the portable apparatus and receives temporal changeinformation of a position of the touch from the portable apparatus; anda transmission control unit that establishes the wireless communicationbetween the portable apparatus and the communication apparatus andcauses the transceiving unit to transmit the content data to theportable apparatus when the temporal change information of the positionof the touch received by the transceiving unit is substantiallyidentical with preset setting information.
 2. The communicationapparatus according to claim 1, further comprising a pattern determiningunit that determines whether the setting information and the temporalchange information of the position of the touch received by thetransceiving unit are identical with each other within a specifiedrange, wherein the transmission control unit causes the transceivingunit to transmit the content data to the portable apparatus according todetermination by the pattern determining unit.
 3. The communicationapparatus according to claim 2, further comprising: a display unit thatdisplays an image corresponding to the image data; a second touch panelthat is superimposed on the display unit, detects a touch of an objectfrom outside, and receives an input of a position signal according to adetected position; and a display control unit that causes the displayunit to display a trajectory of a touch operation performed on thesecond touch panel based on a temporal change signal of the positioninput from the second touch panel.
 4. The communication apparatusaccording to claim 1, further comprising a setting unit that setssetting information including touch information on a touch pattern drawnon the touch panel.
 5. The communication apparatus according to claim 1,further comprising a setting unit that deletes the setting informationafter the transmission control unit establishes the wirelesscommunication between the portable apparatus and the communicationapparatus and causes the transceiving unit to transmit the content datato the portable apparatus.
 6. The communication apparatus according toclaim 5, wherein the setting unit sets setting information includingidentification information of the portable apparatus, a passwordcorresponding to the identification information, and touch informationon a touch pattern to be drawn on the touch panel of the portableapparatus to establish the wireless communication with the portableapparatus.
 7. A communication apparatus comprising: a transceiving unitthat performs transmission and reception with an external apparatus; asetting unit; and a determining unit that determines whether a characterset by the setting unit is identical with temporal change information ofa touch on a touch panel received by the transceiving unit, wherein thetransceiving unit transmits content data to the external apparatusaccording to a determination result by the determining unit.
 8. Thecommunication apparatus according to claim 7, further comprising: adisplay unit that displays an image corresponding to image data; asecond touch panel that is superimposed on the display unit, detects atouch of an object from outside, and receives an input of a positionsignal according to a detected position; and a display control unit thatcauses the display unit to display a trajectory of a touch operationperformed on the second touch panel based on the position signal inputfrom the second touch panel.
 9. The communication apparatus according toclaim 8, wherein the setting unit sets a touch pattern drawn on thesecond touch panel as setting information.
 10. The communicationapparatus according to claim 9, wherein the setting unit deletes thesetting information after the transceiving unit establishes wirelesscommunication between the external apparatus and the communicationapparatus and transmits the content data to the external apparatus. 11.A communication apparatus that performs bidirectional wirelesscommunication with a portable apparatus having a touch panel configuredto detect a touch of an object from outside and to receive an input of aposition signal according to a detected position, and transmits contentdata including image data, the communication apparatus comprising: atransceiving unit that transmits the content data to the portableapparatus and receives trajectory information of the touch from theportable apparatus; and a transmission control unit that performs thewireless communication between the portable apparatus and thecommunication apparatus when the trajectory information of the touchreceived by the transceiving unit is substantially identical with apreset trajectory of the touch.
 12. A communication apparatus thatperforms bidirectional wireless communication with a portable apparatushaving a touch panel configured to detect a touch of an object fromoutside and to receive an input of a position signal according to adetected position, and transmits content data including image data, thecommunication apparatus comprising: a transceiving unit that transmitsthe content data to the portable apparatus and receives characterinformation drawn by the touch from the portable apparatus; and atransmission control unit that performs the wireless communicationbetween the portable apparatus and the communication apparatus whendrawing information of the touch received by the transceiving unit issubstantially identical with preset character information.
 13. Acommunication apparatus that performs bidirectional wirelesscommunication with a portable apparatus having a touch panel configuredto detect a touch of an object from outside and to receive an input of aposition signal according to a detected position, and transmits contentdata including image data, the communication apparatus comprising: adisplay unit that displays an image corresponding to the image data; asecond touch panel that is superimposed on the display unit, detects atouch of an object from outside, and receives an input of a positionsignal according to a detected position; and a display control unit thatcauses the display unit to display a trajectory of a touch operationperformed on the second touch panel based on the position signal inputfrom the second touch panel.
 14. A communication method performed by acommunication apparatus that performs bidirectional wirelesscommunication with a portable apparatus having a touch panel configuredto detect a touch of an object from outside and to receive an input of aposition signal according to a detected position, and transmits contentdata including image data, the method comprising: receivingidentification information of the portable apparatus, a passwordcorresponding to the identification information, and temporal changeinformation of a position of the touch regarding a touch pattern to bedrawn on the touch panel of the portable apparatus to establish thewireless communication with the portable apparatus; and establishing thewireless communication between the portable apparatus and thecommunication apparatus and transmitting the content data to the potableapparatus when the temporal change information of the position of thetouch is substantially identical with preset setting information.
 15. Anon-transitory computer readable recording medium with an executableprogram stored thereon, wherein the program instructs a processor, whichis disposed in a communication apparatus that performs wirelesscommunication with another portable apparatus and transmits content dataincluding image data, to execute: receiving identification informationof the portable apparatus, a password corresponding to theidentification information, and temporal change information of a touchposition regarding a touch pattern to be drawn on a touch panel of theportable apparatus to establish the wireless communication with theportable apparatus; and establishing the wireless communication betweenthe portable apparatus and the communication apparatus and transmittingthe content data to the portable apparatus when the temporal changeinformation of the touch position is substantially identical with presetsetting information.